Re: Cow Fireforming and muzzlebrakes
I am fireforming belted magnum brass, and since there is over .020" differance in location from virgin brass to chamber dimensions, i am fireforming them with a false shoulder presicely as mentioned. Ie done a couple hundred on barrels without brakes, this is just the first barrel with a brake on it. I tried fireforming with the standard load, and it dosen't seem to shoot as well as normal... more than .5moa larger, hence the flying, flaming breakfest chow.
Thanks to all who responded, especially for the pic of the break. I think ill just take it off to be safe.